Purex Triton Minimax Minimax Plus MillivoltSer # E00298074 Model 250 Mwas serviced and a fusible link was removed by the technician, for reason I do not know. The next day the ignition button and surrounding unit had caught fire. Is this a coincidence or are the two related?

Fusible links are designed to melt/separate at a certain temperature. If this link was removed and not replaced, this may not be a coincidence. How did the tech bypass the fusible link? I would take photos of everything, then call the tech back out there to fix it.